Найдите множество решений неравенства: (9-x^2)(6x+30)<0.

\[\left( 9 - x^{2} \right)(6x + 30) < 0\]

\[- 6\left( x^{2} - 9 \right)(x + 5) < 0\]

\[(x - 3)(x + 3)(x + 5) > 0\]

\[(x + 5)(x + 3)(x - 3) > 0\]

\[- 5 < x < - 3;\ \ x > 3.\]